This paper evaluates the efficiency of using a downward breaststroke kick in a sample of eight elite swimmers.Using a downward breaststroke kick increases the one stroke velocity and max speed but also increases produ...This paper evaluates the efficiency of using a downward breaststroke kick in a sample of eight elite swimmers.Using a downward breaststroke kick increases the one stroke velocity and max speed but also increases production of lactate acid.Utilizing the downward breaststroke kick we find the 100-meter and 100-yard breaststroke times decrease from 1:05.10s to 1:01.97s and find the downward breaststroke kick increases muscle activity of the quadriceps,biceps,and calves.The increases in performance were observed from measuring the world class swimmers are highly correlated to duration of the kick aerodynamic buoyant force in breaststroke.展开更多
In this study, we assess the effectiveness of utilizing a straight knee kick in the backstroke with regard to the overall time, max speed, and distance per stroke when using a straight knee butterfly technique. We ana...In this study, we assess the effectiveness of utilizing a straight knee kick in the backstroke with regard to the overall time, max speed, and distance per stroke when using a straight knee butterfly technique. We analyzed freestyle kick of knee angles from 7-Olympic medalists, 1970＇s S-shaped pulling pattern stroke was used with a bending knee freestyle kick. The straight knee kick used in butterfly competitions resulted in improvements from 54.74 to 51.00 in Men＇s 100-meter butterfly and fi＇om 23.43 to 23.02 in Men＇s 50-meter butterfly. Using a straight knee kick in backstroke competitions resulted in improvements from 1：01.74 to 1：00.55 in the 100-meter backstroke event. Increases in performance speed, max speed and distance per stroke among three elite level swimmers are highly correlated to duration of the kick resistance, and straight knee kick in backstroke. The straight knee kick also resulted in an increase in lactate acid.展开更多
In this study,we assess the effectiveness of utilizing a downward breaststroke kick with regard to the overall time,max speed and velocity per stroke when using a downward breaststroke kick technique.We analyzed breas...In this study,we assess the effectiveness of utilizing a downward breaststroke kick with regard to the overall time,max speed and velocity per stroke when using a downward breaststroke kick technique.We analyzed breaststroke kick of knee angles from 8 elite world class swimmers.The downward breaststroke kick used in breaststroke competitions resulted in improvements average of 100 yard or 100 meter breaststroke from 1:05.10 s to 1:01.97 s.Increases in performance max speed and velocity per stroke among 9 elite world class swimmers are highly correlated to duration of the kick aerodynamic buoyant farce in breaststroke.The downward breaststroke kick also resulted in an increase in lactate acid.展开更多
Preparations for the 2008 Games are proceeding smoothly Preparation work for the Olympic Games is still going smoothly, just as Wang Wei, Secretary General of
文摘This paper evaluates the efficiency of using a downward breaststroke kick in a sample of eight elite swimmers.Using a downward breaststroke kick increases the one stroke velocity and max speed but also increases production of lactate acid.Utilizing the downward breaststroke kick we find the 100-meter and 100-yard breaststroke times decrease from 1:05.10s to 1:01.97s and find the downward breaststroke kick increases muscle activity of the quadriceps,biceps,and calves.The increases in performance were observed from measuring the world class swimmers are highly correlated to duration of the kick aerodynamic buoyant force in breaststroke.
文摘In this study, we assess the effectiveness of utilizing a straight knee kick in the backstroke with regard to the overall time, max speed, and distance per stroke when using a straight knee butterfly technique. We analyzed freestyle kick of knee angles from 7-Olympic medalists, 1970＇s S-shaped pulling pattern stroke was used with a bending knee freestyle kick. The straight knee kick used in butterfly competitions resulted in improvements from 54.74 to 51.00 in Men＇s 100-meter butterfly and fi＇om 23.43 to 23.02 in Men＇s 50-meter butterfly. Using a straight knee kick in backstroke competitions resulted in improvements from 1：01.74 to 1：00.55 in the 100-meter backstroke event. Increases in performance speed, max speed and distance per stroke among three elite level swimmers are highly correlated to duration of the kick resistance, and straight knee kick in backstroke. The straight knee kick also resulted in an increase in lactate acid.
文摘In this study,we assess the effectiveness of utilizing a downward breaststroke kick with regard to the overall time,max speed and velocity per stroke when using a downward breaststroke kick technique.We analyzed breaststroke kick of knee angles from 8 elite world class swimmers.The downward breaststroke kick used in breaststroke competitions resulted in improvements average of 100 yard or 100 meter breaststroke from 1:05.10 s to 1:01.97 s.Increases in performance max speed and velocity per stroke among 9 elite world class swimmers are highly correlated to duration of the kick aerodynamic buoyant farce in breaststroke.The downward breaststroke kick also resulted in an increase in lactate acid.
文摘Preparations for the 2008 Games are proceeding smoothly Preparation work for the Olympic Games is still going smoothly, just as Wang Wei, Secretary General of
